.login-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
  }
  
  .login-content {
    width: 100%;
    max-width: 400px;
    text-align: center;
  }
  
  .title {
    color: white;
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
  }
  
  .subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    font-weight: normal;
    margin-bottom: 40px;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
  }
  
  .login-form {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    margin-bottom: 20px;
  }
  
  .form-item {
    margin-bottom: 25px;
    text-align: left;
  }
  
  .form-item label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
    font-size: 14px;
  }
  
  .form-input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    box-sizing: border-box;
  }
  
  .form-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  }
  
  .button-group {
    margin-top: 30px;
  }
  
  .login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
  }
  
  .login-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
  }
  
  .login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
  }
  
  
  
  /* 弹窗样式 */
  .modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
  }
  
  .modal-content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    width: 90%;
    overflow: hidden;
  }
  
  .modal-header {
    padding: 20px 25px 15px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .modal-header h3 {
    margin: 0;
    color: #333;
    font-size: 18px;
  }
  
  .close-btn {
    background: none;
    border: none;
    font-size: 24px;
    color: #999;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .close-btn:hover {
    color: #666;
  }
  
  .modal-body {
    padding: 20px 25px;
  }
  
  .modal-body p {
    margin: 0 0 10px 0;
    color: #666;
    line-height: 1.5;
  }
  
  .contact-info {
    color: #667eea !important;
    font-weight: 500;
  }
  
  .modal-footer {
    padding: 15px 25px 20px;
    text-align: right;
  }
  
  .confirm-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.3s ease;
  }
  
  .confirm-btn:hover {
    background: #5a6fd8;
  }
  
  /* 响应式设计 */
  @media (max-width: 480px) {
    .login-content {
      max-width: 100%;
    }
  
    .login-form {
      padding: 30px 20px;
    }
  
    .title {
      font-size: 24px;
    }
  
    .subtitle {
      font-size: 16px;
    }
  }